Statements (18)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:astronomer
|
| gptkbp:alsoKnownAs |
4U Catalog
|
| gptkbp:catalogue |
celestial X-ray sources
|
| gptkbp:compiledBy |
gptkb:Uhuru_satellite
|
| gptkbp:contains |
339 X-ray sources
|
| gptkbp:countryOfOrigin |
gptkb:United_States
|
| gptkbp:dataCollected |
Uhuru satellite observations
|
| gptkbp:field |
X-ray astronomy
|
| gptkbp:language |
English
|
| gptkbp:predecessor |
Third Uhuru Catalog
|
| gptkbp:publishedBy |
gptkb:NASA
|
| gptkbp:publishedIn |
1978
|
| gptkbp:relatedTo |
Uhuru satellite mission
|
| gptkbp:successor |
subsequent X-ray source catalogs
|
| gptkbp:usedFor |
identification of X-ray sources
|
| gptkbp:bfsParent |
gptkb:4U_catalog
|
| gptkbp:bfsLayer |
7
|
| https://www.w3.org/2000/01/rdf-schema#label |
Fourth Uhuru Catalog
|